United States Steel Corp. ; Thew Shovel Co. Search this
Notes content:
Rail switches ; frogs and crossings ; girder rail sections ; curve and special work plans ; sectional coal conveyor ; "Langham" mine jacks ; "New Conveyors Speed Room-and-Pillar Mining" by Alphonse F. Brosky ; "Santmyer Timber Jack" , for placing timbers in mine headings ; "Langham Collapsible Mine Post Jacks" ; other equipment
Includes:
Trade catalog
Black and white images
Color images
Physical description:
12 pieces; 2 boxes
Language:
English
Type of material:
Trade catalogs
Trade literature
Place:
Johnstown, Pennsylvania, United States
Date range:
1800s-1900s
Topic (Romaine term):
Iron and steel products (castings; sheet steel; steel wire; wire rope; pig iron and structural steel products ) Search this
Mining machinery; equipment and supplies Search this
Railroad; streetcar; subway and tramway equipment and supplies Search this